In this guide
Does Polymarket Support Open Banking in the UK?
Polymarket itself does not offer native Open Banking functionality. That said, numerous UK-based crypto platforms that convert GBP into USDC do integrate Open Banking, enabling rapid, zero-cost deposits. This arrangement streamlines the GBP → USDC → Polymarket route, delivering superior speed and cost efficiency compared to conventional wire transfers.
Exchanges Using Open Banking for GBP Deposits
- Coinbase UK: Offers Open Banking through Plaid, permitting instant GBP deposits at no cost
- Kraken: Integrates Open Banking for GBP transactions (available to select UK banking partners)
- Revolut: Enables near-instantaneous internal transfers; Open Banking is not a requirement
How to Use Open Banking to Fund Polymarket
- Step 1: Log into Coinbase UK, navigate to "Add funds" and choose "Open Banking"
- Step 2: Verify your identity through your bank (Barclays, HSBC, Lloyds, Monzo, and others)
- Step 3: Initiate a GBP transfer — funds land in your Coinbase account instantly (normally within 60 seconds)
- Step 4: Exchange your GBP for USDC on the Polygon blockchain
- Step 5: Send to your MetaMask wallet → complete your Polymarket deposit
Benefits of Open Banking vs Traditional Bank Transfer
Open Banking transactions typically settle immediately (as opposed to 2 hours for standard Faster Payments), carry zero deposit charges, and eliminate the need to manually input sort codes or account details — thereby minimising the chance of entry mistakes.
Which UK Banks Support Open Banking for Crypto?
The vast majority of leading UK financial institutions support Open Banking under the FCA's PSD2 regulatory framework: Barclays, HSBC, Lloyds, NatWest, Santander, Monzo, Starling, and Revolut all facilitate Open Banking sign-in.